This article was previously published under Q67508
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The ROM BIOS version needed for Windows version 3.0 to run in standard (286protected) mode on a Tandy 3000 is version 1.03.02.
The Tandy 3000 uses an OEM (original equipment manufacturer) Phoenix ROMBIOS. The nomenclature of the OEM BIOS does not follow the "generic" ROMBIOS nomenclature. It is important that the Tandy/Phoenix ROM BIOS version1.03.02 or later is used in these systems.
BIOS versions earlier than 1.03.02 do not allow the 80286 processor torun in protected mode. Therefore, systems with an earlier ROM BIOScannot run version 3.00 in standard mode. This error message may bedisplayed, indicating a possible need for a ROM BIOS upgrade:
Unexpected hardware interrupt
For more information, or for help in upgrading your ROM BIOS, pleasecontact Tandy technical support or contact your local Tandy computercenter.
The Tandy products included here are manufactured by a vendor independentof Microsoft; we make no warranty, implied or otherwise, regarding theseproducts' performance or reliability.